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jet

Jet colormap array

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  • Jet colormap

Syntax

c = jet
c = jet(m)

Description

c = jet returns the jet colormap as a three-column array with the same number of rows as the colormap for the current figure (gcf). If no figure exists, then the number of rows is equal to the default length of 256. Each row in the array contains the red, green, and blue intensities for a specific color. The intensities are in the range [0,1], and the color scheme looks like this image.

Sample of the jet colormap

For smoother transitions between colors, use the turbo colormap. For more information, see Alternative Functionality.

example

c = jet(m) returns the colormap with m colors.

example

Examples

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Open Live Script

Plot a surface and assign the jet colormap.

surf(peaks);
colormap('jet');

Figure contains an axes object. The axes object contains an object of type surface.

Get the jet colormap array and reverse the order. Then apply the modified colormap to the surface.

c = jet;
c = flipud(c);
colormap(c);

Figure contains an axes object. The axes object contains an object of type surface.

Open Live Script

Get a downsampled version of the jet colormap containing only ten colors. Then display the contours of the peaks function by applying the colormap and interpolated shading.

c = jet(10);
surf(peaks);
colormap(c);
shading interp;

Figure contains an axes object. The axes object contains an object of type surface.

Input Arguments

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Number of colors, specified as a nonnegative integer. The default value of m is the number of colors in the current figure's colormap. If no figure exists, the default value is 256.

Data Types: single | double

Alternative Functionality

Use the turbo Colormap for Smoother Transitions

The turbo colormap has a color scheme that is similar to the jet colormap, but the transitions between colors are more perceptually uniform.

These colorbars show the difference between the jet and turbo colormaps.

jet

jet colormap displayed in a colorbar.

turbo

turbo colormap displayed in a colorbar.

Version History

Introduced before R2006a

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See Also

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